Map SELinux log levels to Android log levels.

static int log_callback(int type, const char *fmt, ...) {

    va_list ap;

    int priority;

    switch (type) {

    case SELINUX_WARNING:

        priority = ANDROID_LOG_WARN;

        break;

    case SELINUX_INFO:

        priority = ANDROID_LOG_INFO;

        break;

    default:

        priority = ANDROID_LOG_ERROR;

        break;

    }

    va_start(ap, fmt);

    LOG_PRI_VA(ANDROID_LOG_ERROR, "SELinux", fmt, ap);

    LOG_PRI_VA(priority, "SELinux", fmt, ap);

    va_end(ap);

    return 0;

}